@article{ref1,
title="The physiological basis of personality",
journal="Advancement of science",
year="1968",
author="Gray, J. A.",
volume="24",
number="121",
pages="293-305",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0001-866X",
doi="",
url="http://dx.doi.org/"
}